537911321 has 2 divisors, whose sum is σ = 537911322. Its totient is φ = 537911320.

The previous prime is 537911249. The next prime is 537911333. The reversal of 537911321 is 123119735.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 366301321 + 171610000 = 19139^2 + 13100^2 .

It is a cyclic number.

It is not a de Polignac number, because 537911321 - 2¹⁰ = 537910297 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (537911371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268955660 + 268955661.

It is an arithmetic number, because the mean of its divisors is an integer number (268955661).

Almost surely, 2^537911321 is an apocalyptic number.

It is an amenable number.

537911321 is a deficient number, since it is larger than the sum of its proper divisors (1).

537911321 is an equidigital number, since it uses as much as digits as its factorization.

537911321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5670, while the sum is 32.

The square root of 537911321 is about 23192.9153191228. The cubic root of 537911321 is about 813.2740122722.

The spelling of 537911321 in words is "five hundred thirty-seven million, nine hundred eleven thousand, three hundred twenty-one".